TV’s magnificent silliness is such that no bad idea is unworthy of duplicating. And then repeating and repeating and repeating.

For more than 20 years, New York’s local newscasts have responded to the Yankees and/or Mets playing in the postseason exactly the same way: During games, a reporter is dispatched to a local sports-minded bar to solicit feedback from fans. And the best that he or she can provide is the same live report that was presented from a different pub the night before, the season before, two seasons before, five seasons before . . .

As soon as the reporter is cued to speak, boozy patrons shout, “Wooo! Wooo!” They stand over the reporter’s shoulder and wave their index fingers. “Wooo! Number 1! Wooo! Yankees! Wooo! Mets!

Wooo! All the way!” The reporter, having to shout over the noise, can barely be heard, not that he or she would have anything of significance to report if he or she could be heard. What, after all, is there to report? Met fans root for the Mets? Yankee fans root for the Yankees? Booze makes you drunk? TV cameras make drunk Yankee and Met fans go, “Wooo!”?

The result is a colossal waste of time, so much so that file footage from the last time the Yanks or Mets played in the postseason or from 20 years ago would have sufficed.

Of the hundreds of such, ahem, news assignments, through the years, not one has been different from the others. At least not until the reporter is slugged over the head with a beer bottle, which is the only unfulfilled promise that such reports hold.

Yet, such lunacy not only persists, Fox Ch. 5 News, last Saturday night, made such a ridiculous report one of its lead news items.

Shortly after the Mets lost game 3 of the National League Championship Series to the Cardinals in St.

Louis, Ch. 5 News threw it to reporter Andre Hepkins, who was standing in an Upper West Side bar. And what do you think Hepkins was able to provide to Ch. 5’s audience?

“Woooo! Wooo! Mets! Wooo!

Number One! Wooo!” And now back to you in the newsroom.

The next night, after the Mets beat the Cards, Ch. 5 News threw it to Lisa Cabrera, reporting from a local bar.

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How much real-deal cooking do TV’s most celebrated chefs really do? We don’t know, but based on culinary forensics, we’re betting that the Food Network’s Rachael Ray is the real deal.

Last week, on her “30 Minutes Meals” show, we saw a close-up of her right hand. And, based on painful empirical knowledge – having messed with toaster ovens, barbecues and even the George Foreman Grill – those were genuine oven rack burns on her hand.

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For all of its super-hip content, Comedy Central recently emulated what it so often lampoons systemic stupidity. (And thanks to reader Joe Heinzmann of Ridgefield, Ct. for the heads-up on this one.) In the season premiere of “Drawn Together,” an animated comedy, Comedy Central did its best to destroy the show. The character Ling-Ling, a house pet/monster that’s lifted and spoofed from Japanese-made TV cartoons, speaks in such a thick Asian accent that its lines, often designed to be the funny kickers, are subtitled along the bottom of the screen.

And as Ling-Ling spoke, its transcribed words went hidden behind graphics promoting “The Daily Show with Jon Stewart,” which followed “Drawn Together.” While such in-show advertising has become epidemic, when the show and the network are predicated on being so clever, standardized brainlessness becomes extraordinary folly. On Comedy Central, after all, the joke is supposed to be on everyone else.